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Symptoms of rabies typically appear 1 to 3 months after exposure but can vary. Initial symptoms include fever, headache, and general weakness. As the disease progresses, neurological symptoms develop, such as confusion, agitation, hallucinations, and paralysis. Patients may also experience hydrophobia (fear of water) due to throat spasms. Once clinical symptoms appear, rabies is almost always fatal, making early medical intervention crucial.
Rabies is primarily transmitted through the saliva of an infected animal via bites or scratches. Common carriers include bats, raccoons, skunks, and foxes. In rare cases, transmission can occur through open wounds or mucous membranes when in contact with infected saliva. Vaccination and prompt treatment after exposure can prevent the virus from progressing.
Preventive measures for rabies include vaccinating pets, avoiding contact with wild animals, and educating the public about the risks. If bitten or scratched by an animal, individuals should seek immediate medical care to receive post-exposure prophylaxis (PEP), which includes a series of rabies vaccinations to prevent the virus from taking hold.
Rabies has been documented in Canada since the early 19th century, primarily affecting wildlife. Human cases are rare; since 1924, only 28 human deaths due to rabies have been reported. The recent case of an 11-year-old boy marks the first reported rabies death in Ontario since 1967, highlighting the importance of awareness and preventive measures.
Human rabies cases are exceedingly rare in developed countries due to effective vaccination and public health measures. Globally, rabies causes about 59,000 deaths annually, primarily in Asia and Africa. In Canada, the incidence is low, with only a handful of cases reported over the past few decades, emphasizing the effectiveness of rabies control efforts.
If bitten by a bat, seek immediate medical attention. Wash the wound thoroughly with soap and water for at least 15 minutes. Medical professionals will assess the risk of rabies exposure and may recommend post-exposure prophylaxis (PEP), consisting of rabies vaccinations and immunoglobulin treatment to prevent the onset of the disease.
Once symptoms of rabies appear, there is no effective treatment, and the disease is nearly always fatal. However, if exposure is suspected, immediate post-exposure prophylaxis (PEP) can prevent the disease. PEP involves a series of rabies vaccinations and, in some cases, rabies immunoglobulin, administered as soon as possible after exposure.
Rabies primarily affects the central nervous system, leading to severe inflammation of the brain (encephalitis). The virus travels along peripheral nerves to the brain, causing symptoms such as confusion, agitation, paralysis, and eventually coma. This neurological impact is why rabies is considered a medical emergency, requiring prompt intervention after exposure.
The rabies vaccination process for post-exposure prophylaxis (PEP) typically involves a series of four to five doses of rabies vaccine administered over a two-week period. The first dose is given as soon as possible after exposure, with subsequent doses administered on days 3, 7, and 14. In some cases, rabies immunoglobulin may also be given to provide immediate protection.
In Canada, wildlife that poses a risk for rabies includes bats, raccoons, skunks, and foxes. Bats are particularly significant as they are often carriers of the virus without showing symptoms. Preventing contact with these animals and ensuring pets are vaccinated are key strategies in reducing rabies transmission risks.
